Question about 98' ECU

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Sep 25, 2009 | 02:06 AM

Chubbz155

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From: Saline,MI

Question about 98' ECU

So I have heard that the ECU's in the 98' LS1 cars are harder to tune and are also not compatible with a lot of tuners. I have also heard of people swapping out ECU to 99'+ LS1 model ECU. So, I was wondering why the ECU is harder to tune since it is an OBDII car and has the same motor as the 99'+ models? Also what is all involved in swapping out to a 99'+ ECU if that is what needs to be done? Thanks ahead of time!

Last edited by Chubbz155; Sep 25, 2009 at 02:11 AM. Reason: spelled some things wrong

Sep 27, 2009 | 12:37 AM

Chubbz155

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From: Saline,MI

Ttt........

Sep 27, 2009 | 12:54 AM

mvvette97

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From: Leon Iowa

not sure why they would say they are harder to tune. I have tuned many 98s and it's no different to tune than my 2000

Sep 27, 2009 | 12:08 PM

Chubbz155

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From: Saline,MI

Quote:

Originally Posted by mvvette97

not sure why they would say they are harder to tune. I have tuned many 98s and it's no different to tune than my 2000

Ok, so did you tune it with a hand held tuner or with a program like HP tuners?

Sep 27, 2009 | 01:02 PM

mvvette97

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From: Leon Iowa

I used to have a superchips but now I use EFI live

Sep 27, 2009 | 01:24 PM

fknsmshn

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From: Puyallup

They say its harder to tune because with HP Tuners the table resolutions are lower, and IIRC there are some options missing in the '98's. For the swap, I was told you need to repin 1 or 2 wires in the connector. Ive never heard that the '98's werent compatible with a lot of tuners tho. I've seen tuners that have the '98 listed seperatly from the '99-'02 though.

Sep 27, 2009 | 03:15 PM

Chubbz155

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From: Saline,MI

Quote:

Originally Posted by fknsmshn

I have been looking for a hand held tuner to use for now before i get the car dyno tuned in a few years after a stall convertor, LT's, trans build and intake, but that wont be for probaly a year and a half to two years. If you know of a good hand held please let me know!